Stay comfortable through every workout with the Under Armour Men's UA Tech Short Sleeve Training T-Shirt. Made from 100% polyester, its ultra-soft UA Tech™ fabric has a natural feel and dries quickly to keep you comfortable during training. Sweat-wicking material helps you stay dry, while the loose fit offers a fuller cut for complete comfort and easy movement. Many UA Tech™ shirts are made with recycled, traceable polyester, reusing about five plastic bottles per shirt.